Superior Cervical Sympathetic Block Versus Stellate Ganglion Block in Post-traumatic Subarachnoid Hemorrhage

5 ml bupivacaine 0.5% will be injected around the internal carotid artery at the level of carotid bifurcation

5 ml bupivacaine 0.5% will be injected between the common carotid artery and longus capitis muscle at the level of C7 vertebra